EMERGENCY SERVICE AVAILABLEAir Conditioning
Apex Mechanical is your #1 HVAC contractor in Sedalia, MO, and the surrounding communities. We are the leading company for all of your air conditioning needs. If you need repairs, maintenance, or a brand new system installed, the technicians at Apex Mechanical are the qualified and professional crew for the job.
We provide the highest quality service for your air conditioner. We also aim to educate and inform our customers. Informed decisions are good decisions. We want you to feel confident we are qualified to perform the service for which you are hiring us.
How Much Money Can a New Air Conditioner Save You?
Our SEER2 (Seasonal Energy Efficiency Ratio) energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit’s SEER value and compare it to a newer, more efficient SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.
SEER2 Energy Savings Calculator
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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.
Customize to Your Home
Adjust these settings for a more accurate calculation:
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Historical Comparison
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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study
** Data for Canadian cities from nrcan.gc.ca
*** Data from weatherdatadepot.com
Air Conditioning Basics
The four main components to your air conditioner are:
Condenser: The condenser is the outside metal unit and where the gas from the compressor is condensed into a liquid. The gas entering the condenser is very hot. The temperature is then lowered, so the gas can convert back to a liquid.
Compressor: The compressor is inside the condenser. It circulates the pressurized refrigerant, to concentrate the heat, and changes the low pressure gas to high pressure.
Evaporator: The evaporator is the part of the system inside the home. In simple language, it absorbs the heat from your home.
Expansion Valve: The expansion valve controls the amount of refrigerant in your system.
All of these pieces are connected by a copper tube that handles refrigerant, creating a closed loop. Heat is collected in the evaporator, sent outside to the condenser. The heat is removed, and the cool air is recirculated back into your home.
AC Facts
An Air Conditioner Doesn’t Create Cool Air.
What happens in the AC process is actually the removal of heat from the air. Your AC uses a chemical called refrigerant to remove heat and transfer it outside. The warm air runs through the lines and coils in your unit and goes from liquid to gas and back again. During this process, the refrigerant removes the heat and transfers it elsewhere so that when the air comes out the other side, it is cool.
Your AC Will Remove Humidity.
Lower humidity helps the overall comfort level in your home by making you feel cooler, even if the temperature is the same.
Your Air Filter Needs To Be Checked And Replaced Every Three To Six Months.
(depending on the manufacturer’s recommendations)
A dirty air filter restricts your air flow, which reduces efficiency, costing you money, and over time can put stress on your unit and could cause a costly repair.
Maintenance, Maintenance, Maintenance.
Your air conditioner needs regular checkups to keep it running in tip-top shape. Having regular annual preventative maintenance will bring your system longer life and fewer breakdowns over all.
SEER
The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.
At Apex Mechanical, we provide all the services you need to keep your AC running in top-notch shape. Call us at 660-829-5909 for repairs, maintenance, or new-system installation.
Air Conditioner Select one... in Marshall, MO
I originally contacted APEX through their Kansas City office and later discovered they also had a location in Sedalia, Missouri. The first time they came out, my furnace had stopped working. Technician Jimmy performed a thorough inspection and discovered there was a hole in the furnace that could have allowed carbon monoxide to leak into my home. Looking back, I realize just how fortunate my family was. Jimmy immediately explained that, for safety reasons, he could not turn the furnace back on. Instead, he took the time to check the warranty, found that the repair was covered, ordered the necessary part, and returned the following Monday to complete the repair. His honesty, professionalism, and concern for my family's safety left a lasting impression.
The next time my furnace acted up, another technician came out after it shut down during a period of heavy winds—a problem I had noticed happened occasionally. Rather than rushing through the service call, he stayed to make sure everything was operating correctly before he left. That level of care and commitment is something you simply don't find very often.
Most recently, on July 21, 2026, technician Scott came to our home. My children were just as impressed as I was. Scott was professional, knowledgeable, and completely honest. He didn't try to oversell anything or sugarcoat the situation. Instead, he clearly explained what was wrong, told us exactly what needed to happen, and let us know another technician would return the following morning.
True to their word, APEX called the next morning and sent Charlie, who quickly diagnosed and repaired the problem. His work was efficient, and once again, he took the time to explain everything in a way we could understand. We never felt rushed, pressured, or taken advantage of.
One thing that consistently stands out about APEX Mechanical is their customer service. Every technician who has come to our home has been courteous, respectful, knowledgeable, and genuinely interested in making sure the job is done right. They don't just fix the problem—they educate their customers, answer questions, and make you feel confident that your home is in good hands.
In today's world, it can be difficult to find companies you truly trust. Unfortunately, I've dealt with HVAC companies in the past that seemed more interested in selling expensive repairs than actually helping. APEX Mechanical is the complete opposite. They are honest, transparent, and truly put their customers first.
A special thank you to Jimmy, Scott, and Charlie for representing your company so well. They are exceptional technicians and outstanding ambassadors for APEX Mechanical. Their professionalism, integrity, and customer care set the standard that every service company should strive to achieve.
If I could give APEX Mechanical 10 stars instead of 5, I absolutely would. I wholeheartedly recommend them to anyone looking for honest, dependable, and highly skilled HVAC professionals. They have earned my trust, my family's trust, and my business for years to come. Thank you, APEX Mechanical, for consistently delivering service that goes above and beyond!”
Air Conditioner Replacement in Warrensburg, MO 64093
“Had a 5 ton roof unit bad at work. Tol Lipe came by and gave us a bid. He’s a down to earth guy. Not only did he beat everyone’s price, but he also had a better brand of unit..Installation was great and guys were friendly and knowledgeable. Will be using them from now on. Great company to deal with!”
Air Conditioner Repair in Warsaw, MO 65355
“Scott is the best!! He fixed anything here and Warsaw Taco Bell that we need him to repair. From Large to small and then he calls to be sure it is still Fixed. We have really hard water so our ice machines have been a mess. He just takes it apart and cleans it. To our A/C going out to an electrical outlet catching fire. He gets it all done in a timely matter and with a smile…”
Air Conditioner Repair in Windsor, MO
“Great service. Quick. Explained what he was doing.”
Air Conditioner Repair in Windsor, MO 65360
“So glad Lyle got our A/C repaired!”
Air Conditioner Maintenance in Windsor, MO 65360
“Technician was here quickly. Courteous and friendly. I would recommend Apex.”
Air Conditioner Repair in Windsor, MO 65360
“Lyle is an awesome tech”
Air Conditioner Installation in Otterville, MO 65348
“We had a whole heating and air, and duct work done in Nov. The guys came out and within a couple days had the whole job done. Looks great and works great. Turned the air on for the first time and air didn’t work. Called them and within a half hour they were at the house and in seconds had us with air. We highly recommend Apex for your heating and air. Very professional, from office to job. That you for your quick service.”
Air Conditioner Repair in Sedalia, MO 65301
“Lyle was very efficient and thorough. He explained my issue, how to prevent it again and fixed it in very minimal time. The service call was very affordable and the peace of mind from dealing with him and Apex was priceless 10/10.”
Air Conditioner Replacement in Smithton, MO 65350
“This summer the AC/Heater unit needed to be replaced, which is not ideal time to replace the AC unit. Apex was very competitive on cost but its the service that will bring me back to do any future repairs or preventive maintenance needed. Having someone do what they say they will do is priceless. Their Team was professional, polite and explained each step how and why during the complete installation. They will always receive our business.
Great Job.”
Need Air Conditioner Service?
Contact the experts at Apex Mechanical.
Call us at 660-829-5909